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  2. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    Main sapphire-producing countries. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon.

  3. Biological globalization - Wikipedia

    en.wikipedia.org/wiki/Biological_globalization

    Technically wheat is an invasive species in most of the countries it is grown, but because it is economically important to humans we don't classify it as such. In a way, biological globalization allowed for the economic growth of many countries on the global scale, like America and Ukraine, where wheat became a huge export.

  4. Lists of countries by mineral production - Wikipedia

    en.wikipedia.org/wiki/Lists_of_countries_by...

    List of countries by bauxite production: Bismuth [8] China Vietnam: List of countries by bismuth production: Copper [9] Chile Peru: List of countries by copper production: Chromium [10] South Africa Turkey: List of countries by chromium production: Gold [11] China Australia: List of countries by gold production: Iron ore [12] Australia China

  5. Biomineralization - Wikipedia

    en.wikipedia.org/wiki/Biomineralization

    Fossil skeletal parts from extinct belemnite cephalopods of the Jurassic – these contain mineralized calcite and aragonite.. Biomineralization, also written biomineralisation, is the process by which living organisms produce minerals, [a] often resulting in hardened or stiffened mineralized tissues.

  6. Category:Sapphire mines by country - Wikipedia

    en.wikipedia.org/wiki/Category:Sapphire_mines_by...

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  7. Ruby - Wikipedia

    en.wikipedia.org/wiki/Ruby

    Main ruby producing countries. Ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires.

  8. List of countries by total fertility rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_total...

    Lower middle income countries: 2.6 3: Low and middle income countries: 2.4 4: Middle income countries: 2.1 5: Upper middle income countries: 1.6 6: High income countries: 1.5 Not ranked (no data or data from other years) 1 American Samoa - 2 Andorra: 1.3 (2010) 3 Cayman Islands - 4 Monaco - 5 Northern Mariana Islands - 6 Palau: 0.85 (2020) 7 ...

  9. Abiogenesis - Wikipedia

    en.wikipedia.org/wiki/Abiogenesis

    The study of abiogenesis aims to determine how pre-life chemical reactions gave rise to life under conditions strikingly different from those on Earth today. It primarily uses tools from biology and chemistry , with more recent approaches attempting a synthesis of many sciences.